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Find the elongation in a steel wire of length 2 meter and diameter of 9.58 x10^-2 centimeter if a mass of 8.00 kilogram is hung from it.
Water is flowing in a pipe as depicted in the figure. As shown, p = 107 kPa, d = 4.61 cm, d' = 3.38 cm, v = 4.50 m/s, and h = 1.31 m. What pressure is indicated on the upper pressure gauge
Studies have shown that some people can detect 577 nm light with as few as 100 photons enteringthe eye per second. What is the power delivered by such a beam of light
an 10-kg ball moving at 22 ms collides elastically and head-on with a second 6-kg ball moving in the opposite direction
an electron is moving in a plane with a long straight current carrying wire. the electron is heading at a 45 angle
A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18.0 MV/m. If it is used as the dielectric material in a parallel-plate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of ..
1 you chose a an arbitary point to begin measuring the postion of the falling object. how fast was it going at the
Blue light of wavelength 450 nm passes through a 0.20-mm wide slit and illuminates a screen 1.2 m away. How wide is the central maximum of the diffraction pattern
An alpha particle (the nucleus of a helium atom, with charge +2 and a mass four times that of a proton), What is the speed of the antiproton when the particles are 1.6 nm apart
An archer pulls her bowstring back 0.432 m by exerting a force that increases uniformly from zero to 227 N. What is the equivalent spring constant of the bow
two stones are released from rest at a certain height one after the other.a. will the difference between their speeds
High-speed stroboscopic photographs show that the head of a 280-g golf club is travelling at 58 m/s just before it strikes a 46-g golf ball at rest on a tee. After the impact, the club head travels (in the similar direction) at 52-m/s. determine t..
An astronomical telescope for hobbyists has an angular magnification of -130. The eyepiece has a focal length of 5.50 mm. how long is the telescope
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